JPS5487902A - Cavitation supervisory system - Google Patents
Cavitation supervisory systemInfo
- Publication number
- JPS5487902A JPS5487902A JP15606877A JP15606877A JPS5487902A JP S5487902 A JPS5487902 A JP S5487902A JP 15606877 A JP15606877 A JP 15606877A JP 15606877 A JP15606877 A JP 15606877A JP S5487902 A JPS5487902 A JP S5487902A
- Authority
- JP
- Japan
- Prior art keywords
- cavitation
- sensor
- pump
- reflected waves
- engenderment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012530 fluid Substances 0.000 abstract 2
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
Landscapes
- Reciprocating Pumps (AREA)
Abstract
PURPOSE: To detect engenderment of cavitation by detecting attenuation in penetrative waves or reflected waves of pulse signals shot into the fluid or abnormal noises.
CONSTITUTION: A supersonic sensor 4 is attached to the piping in the part where is liable to engender cavitation at the inlet port 3 of a pump, from the sensor 4 are shot high frequency pulses which are made in a pulse signal generator 5 to be constant in their wave height into the fluid in the inlet port 3 of the pump, they are returned from the piping bulkhead opposite thereto, which are captured as reflected waves by the supresonic wave sensor 4. This situation can be observed with use of a cathode tube 8, and when the level of the reflected waves has gone down beyond a settled value, a limiter 6 works, which operates an alarm device 7 to announce the engenderment of cavitation. While, if a pre-amplifer 9 is connected to th output of the sensor 4, the sounds in the pump can be obtained.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15606877A JPS5487902A (en) | 1977-12-24 | 1977-12-24 | Cavitation supervisory system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15606877A JPS5487902A (en) | 1977-12-24 | 1977-12-24 | Cavitation supervisory system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5487902A true JPS5487902A (en) | 1979-07-12 |
Family
ID=15619591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15606877A Pending JPS5487902A (en) | 1977-12-24 | 1977-12-24 | Cavitation supervisory system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5487902A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56118635A (en) * | 1980-02-25 | 1981-09-17 | Nippon Steel Corp | Method and apparatus for detecting inclusion of gas in running water passage |
| JP2010249637A (en) * | 2009-04-15 | 2010-11-04 | Yokogawa Electric Corp | Fluid state detection method and state detection device |
-
1977
- 1977-12-24 JP JP15606877A patent/JPS5487902A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56118635A (en) * | 1980-02-25 | 1981-09-17 | Nippon Steel Corp | Method and apparatus for detecting inclusion of gas in running water passage |
| JP2010249637A (en) * | 2009-04-15 | 2010-11-04 | Yokogawa Electric Corp | Fluid state detection method and state detection device |
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